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Patents for Richard Johnstone
Patents 1 - 15 of 36
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NumberDatePatenteeTitleType
3,882,305May 06, 1975R. JohnstoneDiagnostic communication system for computer controlled machine tools
4,109,309Aug. 22, 1978L.D. Ostby, R. JohnstoneMethod and Apparatus for Remote Display of Analog Signals Occurring in Computer Controlled Machine Toolsmachine tool controls
FR-2,380,595Sep. 08, 1978L.D. Ostby, R. JohnstoneMethod and Apparatus for Remote Displaying of Analog Signals Appearing in Computer Controlled Machine Tools machine tool controls
4,120,030Oct. 10, 1978R. JohnstoneComputer Software Security Systemnumerically controlled milling machines
4,145,816Mar. 27, 1979R. Johnstone, R.E. StobbeSpindle Probe With Orbital Transformer
4,164,810Aug. 21, 1979R.B. Clegg, R. Johnstone, C.B. SipekAutomatic Tool Changer for Machine Toolstool changers and storage mechanisms
4,172,512Oct. 30, 1979R. Johnstone, R.B. CleggMachine Tool With Common Drive for Worktable and Pallet Shuttlemetalworking machine mechanisms
4,177,550Dec. 11, 1979R. Johnstone, C.B. Sipek, R.B. CleggMachine Tool With Hollow Structural Steel Membersmetalworking machine mechanisms
4,185,376Jan. 29, 1980R. JohnstoneUnmanned Machining Center With Tool Checkingnumerically controlled milling machines
CA-1,086,043Sep. 23, 1980R.B. Clegg, R. JohnstoneMachine tool with common drive for worktable and pallet shuttleworkpiece changers and storage mechanisms
CA-1,086,930Oct. 07, 1980C.B. Sipek, R.B. Clegg, R. JohnstoneAutomatic tool changer for machine tooltool changers and storage mechanisms
CA-1,090,108Nov. 25, 1980R. JohnstoneUnmanned machining center with tool checkingtool changers and storage mechanisms
CA-1,090,109Nov. 25, 1980R. JohnstoneMethod of cleaning chips from a work-piece in an unmanned machining centermetalworking machine mechanisms
4,238,034Dec. 09, 1980R.B. Clegg, R. Johnstone, C.B. SipekAutomatic Tool Changer for Machine Toolstool changers and storage mechanisms
4,266,120May 05, 1981R. JohnstoneUnmanned Machining Center With Tool Checkingnumerically controlled milling machines
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